package helpers

import (
	"forge.redroom.link/yves/meowlib"
	"forge.redroom.link/yves/meowlib/client"
	"google.golang.org/protobuf/proto"
)

// InvitationGetAnswer
// Called by the invitation initiator
// invitationId: the id of the invitation
// serverUid: the uid of the server holding the invitation answer
func InvitationGetAnswer(invitationId string, serverUid string) ([]byte, string, error) {

	// check if already in msg servers
	srv, err := client.GetConfig().GetIdentity().MessageServers.LoadServer(serverUid)
	if err != nil {
		return nil, "InvitationGetAnswer: LoadServer", err
	}

	// buildserver message
	toSrvMsg, err := srv.BuildToServerMessageInvitationAnswerRequest(invitationId)
	if err != nil {
		return nil, "InvitationGetAnswer: BuildToServerMessageInvitationRequest", err
	}
	// processoutbound
	bytemsg, err := srv.ProcessOutboundMessage(toSrvMsg)
	if err != nil {
		return nil, "InvitationGetAnswer: ProcessOutboundMessage", err
	}

	return bytemsg, "", nil
}

// InvitationGetAnswerReadResponse
// Called by the invitation initiator
// invitationAnswerData: the data received from the server
// invitationServerUid: the uid of the server holding the invitation
func InvitationGetAnswerReadResponse(invitationAnswerData []byte, invitationServerUid string) (string, error) {

	server, err := client.GetConfig().GetIdentity().MessageServers.LoadServer(invitationServerUid)
	if err != nil {
		return "InvitationGetAnswerReadResponse: LoadServer", err
	}
	// Server inbound processing : get the invitation server
	serverMsg, err := server.ProcessInboundServerResponse(invitationAnswerData)
	if err != nil {
		return "InvitationGetAnswerReadResponse: ProcessInboundServerResponse", err
	}
	// fmt.Println("Inbound OK, Invitation Step: ", serverMsg.Invitation.Step, len(serverMsg.Invitation.Payload))
	// fmt.Println("Invitation Check")
	// fmt.Println(hex.EncodeToString(serverMsg.Invitation.Payload))
	// contactCard decode

	// decode the payload
	var invitationAnswer meowlib.PackedUserMessage
	err = proto.Unmarshal(serverMsg.Invitation.Payload, &invitationAnswer)
	if err != nil {
		return "InvitationGetAnswerReadResponse: Unmarshal", err
	}
	// retreive user public key to check usermessage signature
	//contactPublikKey := serverMsg.Invitation.From

	// process the packed user message

	// finalize the invitation
	//	id := client.GetConfig().GetIdentity()

	//	cc, err := id.FinalizeInvitation(serverMsg.Invitation.)

	return "", nil
}